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USB to Quad Serial Port Converter RS-422/RS-485 with DB9 connectors

Special Price $125.98

Regular Price: $139.98

Quick Overview

Rugged plastic case for the USB to four serial port RS-422/485 converter with DB9 (9-pin male) connectors. Compact and mountable with a 6ft. USB a to B cable and power adapter included.

Availability: In stock



The USB Serial Adapter is designed for serial port expansion connecting to a USB port on your computer or USB hub. the USB quad port serial adapter instantly adds 4 serial communication ports to your system.

The USB Serial Adapter to the USB port, the adapter is automatically detected and installed, there are no IRQ & COM port conflicts, since the port doesn't require any additional IRQ, DMA, memory as resources on the system. The RS-422/485, port functions as native Windows COM port, and it is compatible with Windows serial communication applications.


  • Adds four high speed RS-422 ports via USB connection
  • 384 byte receive buffer
  • 128 byte transmit buffer for high data throughput
  • Data rates: 300 bps to 230K bps
  • Serial connector: Four DB-9 male connectors
  • Easy connectivity to printers, POS, Industrial control devices
  • Data signals: TX-, TX+, RX+, RX-, GND, RTS-, RTS+, CTS+, CTS-
  • Self-powered. External power supply included.

Package Contents

  • USB to Quad Port Serial Adapter
  • Power Adapter
  • 6ft. USB A to B cable
  • Driver and Manual Disk

Additional Information

UPC 736983904966
Manufacturer SerialGear
Length No
Color Silver
OS Support Linux, Win 7, Win Vista, Win XP

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